Default Tweet Copy

First off, let me say that I really love the Genesis Simple Share plugin compared to all the others I’ve tried. I do have a question / feature suggestion: I’d like flexibility to control what the default copy of a Tweet is when someone hits the Twitter ‘share’ button. By default in most sharing plugins, it appears Twitter typically pulls a post’s title as the Tweet copy, and in the case of this nice plugin, adds the ‘via @username’ which is nice. But, I’d like to add a custom field in my post template for ‘default Tweet’ where the author or editor could craft an alternative Tweet that would pre-populate when the share button is hit. Anybody have advice on how to do this?

https://ww.wp.xz.cn/plugins/genesis-simple-share/